{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["material", "process characterization", "manufacturing standard", "process parameter", "concept or principle", "biomedical"], "input": "However , this method considers support structures as the only AM constraint and has difficulty to include more ."}
{"material": ["as"], "process characterization": [], "manufacturing standard": [], "process parameter": [], "concept or principle": [], "biomedical": []}